I once knew a girl who we called 'Princess Dimples'. They were cute on her, but I'm sure there's some rough looking girls with dimples too! So it depends on the surrounding face more than anything else.
I like chicks with dimples. They are cute. The only bad side is that they don't have as much mouth capacity.
Not necessarily a bad thing if it means they speak less. But you've only got a little dick anyway so what's the problem?!